phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './mopo_phpbb1/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a4af8902c81d894a90c975a51237bb0f', -1, 1412209153, 1412209153, '36c6b99c', 16, 0, 0)

Line : 191
File : sessions.php